231217200130054 has 16 divisors (see below), whose sum is σ = 358014258806400. Its totient is φ = 111879124894080.

The previous prime is 231217200130003. The next prime is 231217200130057. The reversal of 231217200130054 is 450031002712132.

It is a super-2 number, since 2×231217200130054² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a junction number, because it is equal to n+sod(n) for n = 231217200129998 and 231217200130025.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231217200130057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 46544872 + ... + 51272404.

It is an arithmetic number, because the mean of its divisors is an integer number (22375891175400).

Almost surely, 2^{231217200130054} is an apocalyptic number.

231217200130054 is a deficient number, since it is larger than the sum of its proper divisors (126797058676346).

231217200130054 is a wasteful number, since it uses less digits than its factorization.

231217200130054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5516415.

The product of its (nonzero) digits is 10080, while the sum is 31.

Adding to 231217200130054 its reverse (450031002712132), we get a palindrome (681248202842186).

The spelling of 231217200130054 in words is "two hundred thirty-one trillion, two hundred seventeen billion, two hundred million, one hundred thirty thousand, fifty-four".